Question

What is the correct order of electronegativity among the following options?

(a) Li<Na<K<Rb<Cs

(b) Li<K<Na<Rb<Cs

(c) Li>Na>K>Cs>Rb

(d) Li>Na>K=Rb>Cs

The question was asked in an interview for internship.

I would like to ask this question from Periodic Trends in Properties of Elements topic in portion Classification of Elements and Periodicity in Properties of Chemistry – Class 11

Answer 1

Correct choice is (d) Li>Na>K=Rb>Cs

Explanation: Electronegativity is the measure of the ability to attract shared electrons to itself of an atom in a chemical compound. The values of electronegativities of Li, Na, K, Rb and Cs are 1, 0.9, 0.8, 0.8 and 0.7 respectively.